William Boyd Andy Clyde Brad King Victor Jory Eleanor Stewart
59 minutes
Some Easterners intend to seize a tract of valuable timber land. Hoppy must try to stop them before they blow up a major dam.
17 September 1941
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| William Boyd | ... | Hopalong Cassidy |
| Andy Clyde | ... | California |
| Brad King | ... | Johnny Nelson |
| Victor Jory | ... | Baptiste Deschamp |
| Eleanor Stewart | ... | Elaine Kerrigan |
| J. Farrell MacDonald | ... | Jim Kerrigan |
| Lesley Selander | ... | Director |